Synthesis of Pt/C Electrocatalysts Under Protection of Glucose and Their Improved Methanol Electrooxidation Activity |
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| Authors: | XING Zi-hao ZHAO Tian-meng JIANG Bo YIN Min SI Feng-zhan LIU Chang-peng YANG Wen-sheng |
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| Institution: | 1. College of Chemistry, Jilin University, Changchun 130012, P. R. China;
2. Laboratory of Advanced Power Sources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China |
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| Abstract: | Carbon supported Pt(Pt/C) electrocatalysts were prepared with glucose as protection agent and NaBH4 as reductant. The Pt nanoparticles deposited on carbon support presented reduced size and well dispersity attributed to the protection effect of glucose. Glucose absorbed on the particle surface was readily removed by water washing without leading to agglomeration of the Pt nanoparticles. The as-prepared Pt/C electrocatalysts showed improved mass activity for methanol electrooxidation compared to the catalyst prepared without glucose protection. The improved performance is attributed to the larger electrochemical active surface area thus increased active sites on the Pt/C elctrocatalysts prepared under the protection of glucose. |
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| Keywords: | Pt/C electrocatalyst Glucose Methanol electrooxidation Fuel cell |
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